well if its automatic transmission, you can add it through the dip stick under the hood with a funnel, but if its a manual transmission, then you can do it two ways, you can add it through the top, where you disassemble the shifter reach where the shifter mounts on to the tranny and just pour it in there or you can go under your car, your transmission has 2 plugs, vertically alligned and the upper plug is where you pour it in and you put your finger in to see if its full and the bottom one is just for a drain, just in case you over fill.